<script setup>
import { User, Lock } from '@element-plus/icons-vue' //导入图标
import { ref, watch } from 'vue'
import { userRegisterService, userLoginService } from '@/api/user'
import { ElMessage } from 'element-plus'
import { useUserStore } from '@/stores'
import { useRouter } from 'vue-router'
const isRegister = ref(false)
const form = ref() //和注册表单进行绑定

//整个的用于提交的form数据对象
const formModel = ref({
  account: '',
  password: '',
  repassword: ''
})
//整个表单的校验规则
// 1.非空校验 required:true    message消息提示，trigger触发校验的时机 blur change
// 2.长度校验 min:xx，max：xx
// 3.正则效验 pattern: 正则规则   \S 表示非空字符
// 4.自定义校验 => 自己写逻辑进行校验 (校验函数)
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blue' },
    { min: 5, max: 10, message: '用户名必须是 5-10位 的字符', trigger: 'blur' }
  ],
  password: [
    { require: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位的非空字符',
      trigger: 'blur'
    }
  ],
  repassword: [
    { require: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位的非空字符',
      trigger: 'blur'
    },
    {
      validator: (rule, value, callback) => {
        //自定义校验函数
        if (value !== formModel.value.password) {
          callback(new Error('两次输入的密码不一致!')) //失败
        } else {
          callback() //成功
        }
      },
      trigger: 'blur'
    }
  ]
}

const register = async () => {
  //注册成功之前，先进性校验，校验成功 → 请求， 校验失败 → 自动提示
  await form.value.validate() //对整个表单的内容进行验证
  await userRegisterService(formModel.value)
  ElMessage.success('注册成功')
  isRegister.value = false
}

const router = useRouter()
const userStore = useUserStore()
const login = async () => {
  await form.value.validate() //对整个表单的内容进行验证
  const res = await userLoginService(formModel.value)
  if (res.data.code === 30001) {
    userStore.setToken(res.data.data)
    ElMessage.success(res.data.msg)
    console.log(1)
    router.push('/subjects')
  } else {
    ElMessage.error(res.data.msg)
  }
}

//切换的时候，重置表单内容
watch(isRegister, () => {
  formModel.value = {
    account: '',
    password: '',
    repassword: ''
  }
})
</script>

<template>
  <!-- 
    1. 解构相关
      el-row表示一行，一行分成24份
        el-col表示列  
        (1) :span="12" 代表在一行中，占12份(50%)
        (2) :span="6"  表示在一行中，占6份(25%)
        (3) :offser="3"代表在一行中，左侧margin份数


        el-form 整个表单组件
        el-form-item 表单的一行 (一个表单域)
        el-input 表单元素 (输入框)
    2. 校验相关 
      (1) el-form => :model = "ruleForm"     绑定的整个form的数据对象
      (2) el-form => :rules = "rules"        绑定的整个rules规则对象
      (3) 表单元素 => v-model="ruleForm.xxx"  给表单元素，绑定form的子属性
      (4) el-form-item => porp 配置生效的是哪个效验规则(和rules中的字段对应)
   -->
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="account">
          <el-input
            v-model="formModel.account"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="register"
            class="button"
            type="primary"
            auto-insert-space
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>

      <!-- 登录 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="account">
          <el-input
            v-model="formModel.account"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>

        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="login"
            class="button"
            type="primary"
            auto-insert-space
          >
            登录
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background:
      // url('@/assets/v2-c9f76c0bbdbd1ad85d97e31aa4357c02_1440w.webp') no-repeat
      //   60% center / 240px auto,
      url('@/assets/v2-c9f76c0bbdbd1ad85d97e31aa4357c02_1440w.webp') no-repeat
      center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
